.sec1{
    width: 100%;
    background-size: cover;
}
.sec1 .img{
    width: 100%;
    overflow: hidden;
}
.sec1 img{
    width: 100%;
    transition: 3s;
    transform: scale(1.1);
}
.sec1 .nav{
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translate(-50%,50%);

    width: 1200px;
    height: 110px;
    background: #FFFFFF;
    box-shadow: 0px 10px 33px 7px rgba(0, 0, 0, 0.09);
    border-radius: 20px;
    display: flex;
    justify-content: space-between;
    z-index: 99999999;
}
.sec1 .nav .left{
    margin-left: 39px;
    width: 130px;
    border-right: 1px solid rgba(198, 198, 198, .22);
}
.sec1 .nav .right{
    /*margin-right: 61px;*/
    display: flex;
    width: 860px;
    justify-content: center;
    padding-right: 170px;
}
.sec1 .nav .right a{
    display: block;
    margin-left: 80px;
    display: block;
    cursor: pointer;
    transition: 0.6s;
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #000000;
}
.sec1 .nav .right a.sel{
    color: #EA5404;
}
.sec1 .nav .right a:hover{
    color: #EA5404;
}
.sec1 .nav a{
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #000000;
    transition: 0.6s;

}
.sec1 .nav a:hover,.sec1 .nav a:hover i{
    color: #EA5404;
}
.sec1 .nav a i{
    font-size: 24px;
    margin-right: 20px;
    transition: 0.6s;
}

.sec2{
    width: 100%;
    height: auto;
    overflow: hidden;
}
.sec2-warp{
    width: 1680px;
    display: flex;
    margin:120px auto 30px;
    justify-content: center;
}
.sec2-warp .item{
    display: flex;
    margin-right: 40px;
}
.sec2-warp .item:nth-child(3){
    margin-right: 0px;
}
.sec2-warp .item .img{
    width: 400px;
    height: 633px;
    position: relative;
}
.sec2-warp .item .img:after{
    width: 100%;
    height: 100%;
    background: rgba(0,0,0);
    content: "";
    position: absolute;
    z-index: 2;
    top: 0;
    left: 0;
    opacity: 0;
    transition: 1s;
}
.sec2-warp .item .img span{
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%,-50%);

    font-size: 30px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    color: #FFFFFF;
    opacity: 0;
    transition: 1s;
    z-index: 3;
}
.sec2-warp .item .img img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.sec2-warp .item .text{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 400px;
    height: 633px;
    background: #F8F8F8;
    box-shadow: 0px 0px 12px 1px rgba(0, 0, 0, 0.09);
    width: 0px;
    transition: 1s;
    overflow: hidden;
}
.sec2-warp .item .text span{
    text-align: center;
    width: 200px;
    font-size: 24px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    color: #232323;
    position: relative;
    display: block;
    margin-bottom: 54px;
}
.sec2-warp .item .text span:after{
    content: "";
    position: absolute;
    bottom: -7px;
    left: 50%;
    transform: translate(-50%,0%);
    width: 47px;
    height: 1px;
    background: #EA5404;
}
.sec2-warp .item .text p{
    width: 275px;
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #232323;
    line-height: 26px;
    margin-bottom: 20px;
}
.sec2-warp .item.active .text{
    width: 400px;
}
.sec2-warp .item:hover{
    cursor: pointer;
}
.sec2-warp .item:hover .img:after{
    opacity: .3;
}
.sec2-warp .item:hover .img span{
    opacity: 1;
    top: 50%;
}
.sec2-warp .item.active .img span{
    opacity: 1;
    top: 50%;
}
.sec2-warp .item.active .img:after{
    opacity: .3;
}
@media screen and (max-width: 1800px){
    .sec2-warp {
        width: 90%;
    }
    .sec2-warp .item .img {
        width: 350px;
    }
    .sec2-warp .item.active .text {
        width: 350px;
    }
}
@media screen and (max-width: 1600px){
    .sec2-warp .item .img {
        width: 320px;
    }
    .sec2-warp .item.active .text {
        width: 320px;
    }
}
@media screen and (max-width: 1440px){
    .sec2-warp .item .img {
        width: 300px;
    }
    .sec2-warp .item.active .text {
        width: 300px;
    }
}
@media screen and (max-width: 768px){
    .sec1 {
        margin-top: 80px;
    }
    .sec1 .nav {
        width: 90%;
        height: auto;
    }
    .sec1 .nav .right {
        margin: 0;
        padding: 0;
    }
    .sec1 .nav .right a {
        font-size: 14px;
        margin: 0;
        width: 30%;
    }
    .sec1 .nav a {
        font-size: 14px;
    }
    .sec1 .nav .left {
        margin: 10px 0 10px 39px;
    }
    .sec2-warp .top {
        width: 100%;
        margin-bottom: 30px;
    }
    .sec2-warp {
        margin: 80px auto 30px;
        flex-direction: column;
    }
    .sec2-warp .item {
        width: 100%;
        margin: 0 auto 20px;
        flex-direction: column;
    }
    .sec2-warp .item .img span {
        opacity: 1;
    }
    .sec2-warp .item .img {
        width: 100%;
    }
    .sec2-warp .item.active .text {
        width: 100%;
    }
    .sec2-warp .item .text {
        width: 100%;
    }
    .sec2-warp .item .img span {
        font-size: 28px;
    }
}